Handle Back button with Angular [Chrome]

I am creating a project using angular, In my application I need to handle back button event. Below is the code which is working fine apart from one scenario

Code:

this.location.subscribe(event => {
 //logout
});
history.pushState({}, '');

This code only works when user is perform some activity, if user just landed on page and click back button then this event is not captured. I tried all the ways but not works.

from Handle Back button with Angular [Chrome]